Getting a list of magento stores - magento

Question

How can I get a list of store groups under a website in Magento and then a list of stores from that store group?

Answer 1

Try this to get the objects directly
Mage::app()->getWebsites(); < in file > app/code/core/Mage/Core/Model/App.php:920
Mage::app()->getStores(); < in file > app/code/core/Mage/Core/Model/App.php:834
iterate over to get the needed scope of one specific website or store
foreach (Mage::app()->getWebsites() as $website) {
foreach ($website->getGroups() as $group) {
$stores = $group->getStores();
foreach ($stores as $store) {
//$store is a store object
}
}
}
For the future if you have similar questions here's how i discovered those answers within 60 seconds. First i grep for method names or similar method names with space before method name to see where the methods are defined
grep ' getStores' app/code -rsn
grep ' getWebsites' app/code -rsn
Second step is grep for usage samples to see how they are meant to use by core developers. For that i add >methodName to grep and this gives me list of files where this method is called and this will give us place to look for examples:
grep '>getWebsites' app/code -rsn

Answer 2

Anton's answer, while correct, may be re-inventing the wheel just a bit. There is already a facility in the Magento Core to retrieve this sort of data.
You can retrieve a list of all websites, and their "children" using this:
Mage::getSingleton('adminhtml/system_store')->getStoresStructure()
You can also pass an array of websiteIds, storeIds, or storeGroupIds to the function, to filter the list:
public function getStoresStructure($isAll = false, $storeIds = array(), $groupIds = array(), $websiteIds = array())
Example output:
Array
(
[1] => Array
(
[value] => 1
[label] => Main Website
[children] => Array
(
[1] => Array
(
[value] => 1
[label] => Madison Island
[children] => Array
(
[1] => Array
(
[value] => 1
[label] => English
)
[2] => Array
(
[value] => 2
[label] => French
)
[3] => Array
(
[value] => 3
[label] => German
)
)
)
)
)
)
There is a similar one used to populate the "Store Scope" dropdowns and multi-selects all across the admin section.
Mage::getSingleton('adminhtml/system_store')->getStoreValuesForForm(false, true)
Array
(
[0] => Array
(
[label] => All Store Views
[value] => 0
)
[1] => Array
(
[label] => Main Website
[value] => Array
(
)
)
[2] => Array
(
[label] => Madison Island
[value] => Array
(
[0] => Array
(
[label] => English
[value] => 1
)
[1] => Array
(
[label] => French
[value] => 2
)
[2] => Array
(
[label] => German
[value] => 3
)
)
)
)
To discover this, I located a multi-select on the Admin that has the data I wanted, then I turned on template hints to find out which block class was responsible for rendering it: Mage_Adminhtml_Block_Cms_Page_Edit_Form. Knowing this, I found the class in the codebase,(app/code/core/Mage/Adminhtml/Block/Cms/Block/Edit/Form.php) and located the part that creates the input by searching for its label ("Store View"). This showed me how the input's values were being provided:
$field =$fieldset->addField('store_id', 'multiselect', array(
'name' => 'stores[]',
'label' => Mage::helper('cms')->__('Store View'),
'title' => Mage::helper('cms')->__('Store View'),
'required' => true,
'values' => Mage::getSingleton('adminhtml/system_store')->getStoreValuesForForm(false, true),
));
The Mage::getSingleton('adminhtml/system_store') points to the class Mage_Adminhtml_Model_System_Store, where I found a variety of similar methods that can also be useful. Have a look for yourself.